How to Plan a 500 m² Commercial Gym: Zoning, Station Counts and Budget Allocation

Five hundred square metres is the most common commercial gym size we quote for. It is big enough to offer everything a member expects and small enough that a single planning mistake — one over-specified zone — makes the whole floor feel cramped. Here is how we approach it.

Before selecting a single machine, you need five figures: total floor area, usable area after circulation, ceiling height, projected peak occupancy, and average session length. Peak occupancy is the one people get wrong. It is not the membership number — it is the number of people in the building at the busiest hour, which for most clubs is between 17:30 and 19:30 on a weekday.

A 500 m² club with 900 members typically sees 55 to 80 people at peak. Design for the top of that range and you will not be queueing members out of the door in month six.

Circulation eats roughly 35% of a gym floor once you account for walkways, emergency egress, entry and changing access, and the clearance members need between occupied stations. A 500 m² floor typically gives you around 325 m² of equipment footprint. Budget against that number, not 500.

For a general-membership club, this split holds up well:

• Strength and racks — 25%. Power racks, platforms, benches, Olympic bars and plates. This zone is expensive per square metre but drives retention among serious members.
• Plate-loaded machines — 20%. Presses, rows, leg press. High load, low maintenance, popular with experienced members.
• Selectorised circuit — 20%. Eight to twelve machines covering the major movements. This is where most members spend most of their time.
• Free weights — 15%. Dumbbells, benches, storage. Storage area must be counted — undersized storage is why free-weight areas become unsafe.
• Functional and cable — 12%. A cable crossover or dual functional trainer plus open floor for carries, sled work and mobility.
• Conditioning — 8%. Cardio, ideally self-powered or magnetic to cut service costs.

A workable rule for a club of this size is one strength station per 35 to 45 members of peak occupancy, and one selectorised station per 20 to 25. For 70 people at peak that means roughly two rack platforms, four to six plate-loaded machines, ten to twelve selectorised machines, a full dumbbell range, one cable crossover and two to four conditioning pieces.

Spend on the equipment members touch most and that is hardest to replace later: racks, cables, selectorised machines and free weights. Save on storage, accessories and — in most clubs — cardio, where the equipment is lower-maintenance and easily extended in a second phase.

Deliberately leave a zone unfinished. Almost every club we work with ends up adjusting its equipment mix after six months of real membership data. Leaving the conditioning or functional zone to phase two, and buying it once you know how members behave, is better than guessing at specification stage.

• Keep a minimum of 1.2 m between occupied stations in high-traffic zones.
• Never place a machine so a member works with their back to a walkway.
• Keep emergency egress routes completely clear — this is a compliance issue, not a preference.
• Group storage at zone boundaries so members return equipment without crossing the floor.

If you send us a floor plan, we will produce a zoning drawing and a station count for your numbers, with the assumptions stated so you can challenge them.